Home / 13,538.58-18,699.75-10,150.74

Finding the Fourth Proportional to 13,538.58, 18,699.75 and 10,150.74

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Solution

The fourth proportional to 13,538.58, 18,699.75 and 10,150.74 is: 14,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.58 : 18,699.75 = 10,150.74 : x
  2. Step 2: Convert to fraction form
    13,538.58/18,699.75 = 10,150.74/x
  3. Step 3: Cross multiply
    13,538.58x = 18,699.75 × 10,150.74
  4. Step 4: Simplify right side
    13,538.58x = 189,816,300.32
  5. Step 5: Solve for x
    x = 189,816,300.32/13,538.58
  6. Step 6: Final answer
    x = 14,020.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.